Jill Keppeler 
Wider World [PDF ebook] 
An Unofficial Minecraft(R) Adventure

The team has more than a base now. They have a fortress, a thriving farm, and a road to the village, where they can trade for items with the villagers. However, all four of them will have to leave their comfort zones, as Dave and Kayla venture into the jungle and Matt and Jaz search for obsidian in the depths of the earth. Their adventures will bring them deeper than ever into the wider Minecraft world.